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Finding the Fourth Proportional to 165,249.81, 228,024.32 and 100,695.51

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Solution

The fourth proportional to 165,249.81, 228,024.32 and 100,695.51 is: 138,947.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,249.81 : 228,024.32 = 100,695.51 : x
  2. Step 2: Convert to fraction form
    165,249.81/228,024.32 = 100,695.51/x
  3. Step 3: Cross multiply
    165,249.81x = 228,024.32 × 100,695.51
  4. Step 4: Simplify right side
    165,249.81x = 22,961,025,546.42
  5. Step 5: Solve for x
    x = 22,961,025,546.42/165,249.81
  6. Step 6: Final answer
    x = 138,947.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.